Year	% (modeled ILO estimate)
1991	43.964
1992	43.958
1993	43.933
1994	43.905
1995	43.882
1996	43.873
1997	43.869
1998	43.862
1999	43.859
2000	43.855
2001	43.851
2002	43.849
2003	43.848
2004	43.847
2005	43.845
2006	43.844
2007	43.846
2008	43.142
2009	44.597
2010	44.356
2011	43.911
2012	43.245
2013	42.967
2014	42.664
2015	42.394
2016	42.427
2017	41.702
2018	41.191
2019	43.757
2020	37.859
2021	34.487
2022	38.249
2023	38.353